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Finding the Fourth Proportional to 79,566.53, 109,770.74 and 45,556.85

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Solution

The fourth proportional to 79,566.53, 109,770.74 and 45,556.85 is: 62,850.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,566.53 : 109,770.74 = 45,556.85 : x
  2. Step 2: Convert to fraction form
    79,566.53/109,770.74 = 45,556.85/x
  3. Step 3: Cross multiply
    79,566.53x = 109,770.74 × 45,556.85
  4. Step 4: Simplify right side
    79,566.53x = 5,000,808,359.93
  5. Step 5: Solve for x
    x = 5,000,808,359.93/79,566.53
  6. Step 6: Final answer
    x = 62,850.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.